Finding terracotta tile to match

In my endless quest to find and fix leaks at my home I have found a few broken terracotta tiles. For the "S" tiles I've been able to find spares around the property, but the roof edge tiles are a different story.

In my poor PhotoShop sketch below I'm showing mine, a 180 degree "half-pipe" and the apparent new design using two tiles to span the same distance.

Can anyone here tell me where I might find some of the older style? I only need 3 or 4 pieces.

They didn't carry much in building supplies and but referred me to "Architectural Detail", also in Pasadena. "Yes, we have quite a lot of Los Angeles Pressed Brick roofing tile". I was elated. But when I said I was looking for the edge tiles, she replied "You and everyone else".